5r^2+6r+1=0

Simple and best practice solution for 5r^2+6r+1=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 5r^2+6r+1=0 equation: 



5r^2+6r+1=0

a = 5; b = 6; c = +1;
Δ = b2-4ac
Δ = 62-4·5·1
Δ = 16
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{16}=4$


$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(6)-4}{2*5}=\frac{-10}{10}
=-1
$


$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6)+4}{2*5}=\frac{-2}{10}
=-1/5
$

See similar equations:

| -16=4(9a+7) | | 3x+8x=24 | | 11x+12=9x-31 | | A=8x+6° | | 2×+4=9-y | | -18+22=-4(x+7) | | x-1.58=5.51 | | 7c+8+6c=-27 | | 18=24+2x | | 19x+29=100 | | 9(y-2)=7 | | 4(u+7)=-5u+46 | | 6x-22=1x | | 5(3n-6)=-33-8n | | -8+5z=-5-7+8z | | 4x^2+1=75-4x | | -34=6K+9k | | x+2(15)=9 | | (3n+5)+55=180 | | 4z+3(6-z)=(z-1)+13 | | 8y-7-4=-18 | | 72-24x=0 | | x=12.83=2.02 | | 5z+4(6-z)=(z-1)+17 | | 2(x-22)+4(x-3)=58 | | 3x+7+3x=10 | | 4+9(1-6h)=23 | | 12+5x=30x+17 | | 1/3(x-6)+1=8 | | -14=5x-7 | | Y+3=12+5x+4x | | 5x+14+2x+2=30 |

Equations solver categories